body{
    background: linear-gradient(to right, #a8edea, #a6c1ee);
}

h1{
    margin-top: 120px;
    color: white;
    font-family: cursive;
    font-size: 50px
}

.form-check{
    margin-top: 15px;
}

.main{
    width: 400px;
    height: 450px;
    position: absolute;
    left: 50%;
    top: 50%;
    margin: -225px 0 0 -200px;
    padding: 50px;
    background: rgba(255,255,255,0.8);
    border-radius:10px ;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.title{
    padding-top: 25px;
    padding-bottom: 40px;
    text-align: center;
}

.title a{
    padding: 10px;
    color: #b19696;
    font-weight: 500;
    text-decoration: none;
}

#login{ /*id选择器*/
    font-weight: 700; /*加粗*/
    color: #ea6f5a;
    border-bottom: 1px solid #ea6f5a;
    text-decoration: none;
}

.form-control{
    height: 50px;
}

.user{
    border-bottom: none;
    border-radius: 5px 5px 0 0;
    background:url(../img/user.png) no-repeat 5px 12px;
    background-size: 25px 25px;
    padding-left:35px;
}

.password{
    border-radius: 0 0 5px 5px;
    background:url(../img/password.png) no-repeat 8px 12px;
    background-size: 20px 20px;
    padding-left:35px;
}

.remember-btn{
    float: left;
    margin: 55px 0 30px;
    font-size: 14px;
    color: #999;
}

.form-group .help{
    float: right;
    margin: 55px 0 30px;
    font-size: 14px;
    color: #999;
}

.btn{
    margin-top: 30px;
    border: none;
    border-radius: 25px;
    background: #3194d0;
}
